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US 11,712,740 B2Granted
Built-in type supersonic spindle and excitation method using same
AssigneeKaswin Co., Ltd.
InventorGi Soo Kim
Life of this patent
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Abstract
The present invention relates to a built-in type spindle, and more particularly, to a built-in type supersonic spindle, which includes a housing having a built-in spindle unit therein and a supersonic vibrator pressing the built-in spindle unit in order to enhance machining accuracy and reduce a damage of a bearing by vibrating a spindle and the bearing at the same time, and an excitation method using the built-in type supersonic spindle.
Claims10
A built-in type supersonic spindle comprising:
- a housing in which a supersonic vibrator is disposed at one side;
- and
- a built-in spindle unit disposed inside the housing;
- and
- a magnetic levitation unit disposed between the housing and the built-in spindle unit to make the built-in spindle unit float inside the housing,
- wherein the supersonic vibrator gets in contact with the built-in spindle unit in order to transmit vibration generated from the supersonic vibrator to the built-in spindle unit,
- wherein a spindle of the built-in spindle unit is vibrated together with a bearing, and is supported by the bearing to be rotatable, and
- wherein the magnetic levitation units are disposed in a pair, and the housing and a spindle case keep an interval therebetween by a mutually exclusive force using electromagnets having the same polarity.
5 more elements
Dependencies are inferred from the claim text.